| Janus I |  Lava | 1 | 3,840 km | 959°C | 0.43g | 0.41 AU |
| Moon | Radius | Temp | Gravity | Mass | Distance |
|---|
| Janus I - Moon 1 | 380 km | -47°C | 0.02g | 3.7 × 10²⁰ kg | 105,945 km |
|
| Janus II |  Barren | 1 | 5,320 km | 39°C | 0.75g | 0.806 AU |
| Moon | Radius | Temp | Gravity | Mass | Distance |
|---|
| Janus II - Moon 1 | 220 km | -112°C | 0.01g | 4.3 × 10¹⁹ kg | 362,179 km |
|
| Janus III | Barren | 2 | 4,850 km | 11°C | 0.7g | 1.156 AU |
| Moon | Radius | Temp | Gravity | Mass | Distance |
|---|
| Janus III - Moon 1 | 380 km | -138°C | 0.01g | 2.6 × 10²⁰ kg | 123,868 km | | Janus III - Moon 2 | 570 km | -138°C | 0.02g | 1.1 × 10²¹ kg | 407,613 km |
|
| Janus IV | Barren | 1 | 6,620 km | 8°C | 1.18g | 1.361 AU |
| Moon | Radius | Temp | Gravity | Mass | Distance |
|---|
| Janus IV - Moon 1 | 890 km | -149°C | 0.04g | 4.5 × 10²¹ kg | 307,256 km |
|
| Janus V |  Oceanic | 0 | 3,010 km | 81°C | 0.41g | 1.553 AU |
| Janus VI | Lava | 1 | 4,000 km | 669°C | 0.39g | 2.011 AU |
| Moon | Radius | Temp | Gravity | Mass | Distance |
|---|
| Janus VI - Moon 1 | 140 km | -171°C | 0g | 7.0 × 10¹⁸ kg | 217,034 km |
|
| Janus VII |  Gas | 7 | 22,010 km | -189°C | 0.8g | 2.938 AU |
| Moon | Radius | Temp | Gravity | Mass | Distance |
|---|
| Janus VII - Moon 1 | 200 km | -189°C | 0g | 2.2 × 10¹⁹ kg | 76,485 km | | Janus VII - Moon 2 | 320 km | -189°C | 0.01g | 1.2 × 10²⁰ kg | 141,333 km | | Janus VII - Moon 3 | 790 km | -189°C | 0.03g | 2.4 × 10²¹ kg | 362,985 km | | Janus VII - Moon 4 | 850 km | -189°C | 0.03g | 3.1 × 10²¹ kg | 569,719 km | | Janus VII - Moon 5 | 270 km | -189°C | 0.01g | 6.6 × 10¹⁹ kg | 847,207 km | | Janus VII - Moon 6 | 1,630 km | -189°C | 0.07g | 2.8 × 10²² kg | 1,285,920 km | | Janus VII - Moon 7 | 270 km | -189°C | 0.01g | 6.0 × 10¹⁹ kg | 2,584,330 km |
|
| Janus VIII | Gas | 1 | 13,020 km | -211°C | 0.72g | 5.487 AU |
| Moon | Radius | Temp | Gravity | Mass | Distance |
|---|
| Janus VIII - Moon 1 | 1,430 km | -211°C | 0.05g | 1.5 × 10²² kg | 1,122,090 km |
|
| Janus IX | Gas | 13 | 76,750 km | -229°C | 4.38g | 10.721 AU |
| Moon | Radius | Temp | Gravity | Mass | Distance |
|---|
| Janus IX - Moon 1 | 320 km | -229°C | 0g | 7.8 × 10¹⁹ kg | 211,762 km | | Janus IX - Moon 2 | 360 km | -229°C | 0.01g | 1.1 × 10²⁰ kg | 280,255 km | | Janus IX - Moon 3 | 180 km | -229°C | 0g | 1.1 × 10¹⁹ kg | 374,909 km | | Janus IX - Moon 4 | 920 km | -229°C | 0.02g | 2.8 × 10²¹ kg | 612,402 km | | Janus IX - Moon 5 | 970 km | -229°C | 0.02g | 3.4 × 10²¹ kg | 1,067,140 km | | Janus IX - Moon 6 | 1,570 km | -229°C | 0.05g | 1.7 × 10²² kg | 1,431,430 km | | Janus IX - Moon 7 | 2,190 km | -229°C | 0.08g | 5.4 × 10²² kg | 2,350,710 km | | Janus IX - Moon 8 | 3,940 km | -229°C | 0.18g | 4.0 × 10²³ kg | 4,458,180 km | | Janus IX - Moon 9 | 2,100 km | -229°C | 0.07g | 4.7 × 10²² kg | 5,486,360 km | | Janus IX - Moon 10 | 3,550 km | -229°C | 0.15g | 2.8 × 10²³ kg | 7,549,420 km | | Janus IX - Moon 11 | 5,480 km | -229°C | 0.28g | 1.2 × 10²⁴ kg | 10,081,599 km | | Janus IX - Moon 12 | 3,610 km | -229°C | 0.15g | 3.0 × 10²³ kg | 20,404,900 km | | Janus IX - Moon 13 | 210 km | -229°C | 0g | 1.8 × 10¹⁹ kg | 27,876,100 km |
|
| Janus X |  Plasma | 2 | 9,760 km | -245°C | 1.15g | 27.268 AU |
| Moon | Radius | Temp | Gravity | Mass | Distance |
|---|
| Janus X - Moon 1 | 360 km | -245°C | 0g | 8.6 × 10¹⁹ kg | 1,444,160 km | | Janus X - Moon 2 | 810 km | -245°C | 0.01g | 1.4 × 10²¹ kg | 7,512,360 km |
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